Fire-door for locomotives



w. WHITE. FIRE DOOR FOR LOCOMOTIVES.

APPLICATION FILED MAY 29, I915- PatentedSept. 27, 1921.

UNITED STATES] PATENTOFFICE- WILLIAM WHITE, OF NILES, MICHIGAN, ASSIGNOR'I'O HALE/RY VISSERING & COM-- IPANY, OF CHICAGO, ILLINOIS,

FIRE-DOOR FOR Be it known that I, WILLIAM WHrrn, a citizen of the UnitedStates, and aresident of Niles, in the county of Berrien and State ofMichigan, have invented certain new and useful Improvements inFire-Doors for L0- comotives, of which the following is aspecification.

My invention relates to firedoors and has for its object to provide afire door having a simple and efficient fluid pressure operatingmechanism, the parts of which are so compactly arranged as to cause nointerference with the duties of the engine men and are of simple andeconomical construction. With this object in view, my invention con-'sists in the details hereinafter described and claimed.

In the drawing, Figure 1 is a rear elevation of a fire door with myimproved operating mechanism. Fig. 2 is a side elevation.

In the drawing, A indicates the fire door and B the frame work thereof,the door being hung upon suitable hinges C. These hinges C have onemember formed upon the upper portion of the outwardly projecting housingB forming a part of the door frame, while the other member of the hingeis formed upon the upper part of the. door, the hinge members beingconnected by the pintle C The door so mounted is adapted to swinginwardly and upwardly. Upon the upper wall of the housing B is mounted afluid pressure cylinder D, the piston rod D of which is operated bysuitable fluid pressure, such as compressed air, supplied through thepipe E connected with a suitable source of supply and controlled by thevalve mechanism F operated by a pivoted foot lever Gr, all these partsbeing of any suitable well known construction. Rigidly connected to theforward end of the piston rod D is a forked link H, the arms H of whichextend forwardly, substantially parallel with the cylinder D on eachside thereof. At the upper edge of thedoor is arranged a project ing lugK and to the upper end of this lug are connected bent links H pivotallyconnected at their inner ends to the inner ends of the arms II.

From the arrangement of parts thus far described, it will be apparentthat when fluid pressure is admitted to the cylinder D A CORPORATION orILLINOIS.

LOCOMOTIVES.

Specification of Letters Patent. Patented Sept. 27, 1921; v

1915. Serial No; 31,254.

and the piston rod caused to travel outwardly, the door will be swunginwardly to the position shown in dotted lines in Fig. 2. The door maybe maintained in its open position as long as the fluid pressure is keptupon thecyli-nder. In order, however, to provide for holding the dooropen when the fluid pressure has been released, I mount upon one of thehinge pintles C a bent lever M, having one arm I forming a handle 6X-tending upwardly and inwardly while the other arm M? is adapted toengage the door. At an intermediate point, the lever is provided with apivoted pawl M adapted to engage a stop M formed upon the upper surfaceof the rearwardly projecting housing B. Thus, when the door is in openposition, asshown in dotted lines, it may be held in this position bythe lever M. When the pawl is disengaged from the stop M the weight ofthe door will cause the door to close, the fluid pressure in thecylinder acting as a cushion to prevent too sudden shocks.

Having thus described my invention. what I claim is:

1. In a fire door, the combination of a frame, an inwardly swinging doormounted in said frame, a lever having upper and lower portions pivotallyattached intermediate its ends, to said frame, the lower part of saidlever being adapted only to contact with and open said door when theupper part of said lever is moved rearwardly.

2.-In. a fire door, the combination of a frame having a rearwardlyprojecting housing, an inwardly and upwardly swinging door mounted inthe housing, a lever having upper and lower portions pivotally attachedintermediate its ends, to said housing, the lower part of said leverbeing only adapted to contact with and open said door when the upperpart of said lever is moved rearwardly.

3. In a fire door, the combination of a frame having a rearwardlyprojecting housing, an inwardly and upwardly swinging door mounted inthe housing, a lever having upper and lower portions pivotally attachedintermediate its ends, to saidhousing, the lower partof said leveradapted only to contact with and open said door when the upper part ofsaid lever is moved rearwardly, said lever being formed and arranged sothat its upper end extends forwardly when the door is in its closedposition.

l. In a fire door, the combination of a frame having a rearwardlyprojecting housing, an inwardly and upwardly swinging door mounted inthe housing, a lever having upper and lower portions pivotally attachedintermediate its ends, to the outer side of said housing, the lower partof said lever only adapted to enter the housing and push open said doorwhen the upper part of said lever is moved rearwardly.

5. In a fire door, the combination of a frame, a door pivotally mountedin said frame, pneumatically operated means for opening said door, and amanually operated lever adapted to move transversely to said framehaving thrust engagement only with said door for opening it, whereby thesaid pneumatically operated means may be operated independently of saidlever.

6. In a fire door, the combination of a frame having a rearwardlyprojecting housing, an inwardly and upwardly swinging door mounted inthe housing and a lever having upper and lower portions pivotallymounted intermediate its ends, on said housing, both ends of the leverbeing inclined forwardly when the door is closed, the lower end of thelever having thrust engagement only with said door for opening saiddoor.

7. In a fire door, the combination of a frame having an opening therein,an-inwardly swinging door adaptedto close said opening mounted in saidframe, a lever having upper and lower portions pivotally mountedintermediate its ends, on said frame, the lower part of the leverhav-ing thrust engagement only with said door for opening said door andarranged closely adjacent the inner wall of said opening whereby theeffective area of said opening is reduced a minimum by said lever.

8. In a fire door, the combination of a frame having a rearwardlyprojecting housing, an inwardly and upwardly swinging door mounted inthehousing and a lever having upper and lower portions pivotally mountedintermediate its ends, on said housing, the upper end inclined forwardlyadjacent the outer side ofsaid housing, the lower end projectingforwardly adjacent the inner side of the housing andhaving thrustengagement .only with said door for opening said door.

WILLIAM WHITE.

